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This lab activity arouses a personal interest as students experiment to identify response areas of their body, and become aware of their sensory perception. Students “map” the taste sensation of sweet, salty, bitter, and sour; determine their olfactory fatigue and recovery times by inhaling different odors; actually discover that there are different nerve endings for hot and cold as they “map” a section of skin; locate nerve endings for touch (pressure) and pain, as well as determine the two-point threshold of various regions of their bodies; investigate the blind spots, dominant eye, visual accommodation, near point of vision, and afterimage; and experiment with reflex actions. Complete for 30 students.
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